Home / 31,787.75-47,690.13-11,011.25

Finding the Fourth Proportional to 31,787.75, 47,690.13 and 11,011.25

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Solution

The fourth proportional to 31,787.75, 47,690.13 and 11,011.25 is: 16,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,787.75 : 47,690.13 = 11,011.25 : x
  2. Step 2: Convert to fraction form
    31,787.75/47,690.13 = 11,011.25/x
  3. Step 3: Cross multiply
    31,787.75x = 47,690.13 × 11,011.25
  4. Step 4: Simplify right side
    31,787.75x = 525,127,943.96
  5. Step 5: Solve for x
    x = 525,127,943.96/31,787.75
  6. Step 6: Final answer
    x = 16,519.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.